.page{font-size:200px;background-color:#fff;color:red;display:flex;align-items:center;justify-content:center;width:182mm;height:257mm;position:relative}.header{top:15px}.footer,.header{position:absolute;display:flex;justify-content:space-between;z-index:1;left:15px;width:calc(100% - 30px)}.footer{bottom:15px}.cornor{width:30px;height:20px;background-color:red}